TY - JOUR ID - TI - THE STUDY OF VISUAL EVOKED POTENTIAL CHANGES IN PATIENTS WITH DIABETES MELLITUS AU - Lana A. Kathim AU - Khalid A. Al-maraj AU - Sarkis K. Strak AU - Mohammed A.A.AI-idani PY - 2009 VL - 27 IS - 2 SP - 55 EP - 65 JO - The Medical Journal of Basrah University المجلة الطبية لجامعة البصرة SN - 02530759 AB - ABSTRACTTo establish the usefulness of evoked potential testing in the diagnosis of central nervous system disorders in patientswith diabetes mellitus, a group of forty diabetic patients (23 males and 17 females, 20 with type 1 and 20 with type 2)were studied They were matched in terms of age and sex with another group of 50 apparently healthy controls (31males and 19 females). Visual evoked potential test for both diabetic patients and controls and nerve conduction studyfor diabetics were done. Fasting plasma glucose level was estimated prior to recording of visual evoked potential. Themean P100 latencies were significantly prolonged in diabetic patients with a mean ± standard deviation of(109.87±9.63) as compared with controls (104.08 3.31), (P=0.014). The mean P100 amplitude was (4.63 ± 1.45) indiabetic patients while in controls of (4.78 ± 2.55), (P=0.873). A positive correlation was reported between fastingplasma glucose level and prolonged P 100 latencies but not with the type and duration of diabetes, presence of distalsymmetrical polyneuropathy, age and sex of diabetic patients. In conclusions visual evoked potential test enables adiagnosis and objective evaluation of central nervous system disorders in diabetic patients and its abnormalitycorrelates with the level of plasma glucose but not with the type, duration of diabetes, presence of distal symmetricalpolyneuropathy, age and sex of patients.

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